Post and tile mold.



PATENTBD JULY 7, 1908.

F. & C. J. HELM.

POST AND TILE MOLD. APPLIGATI'ON FILED 00m17.190s.

2 SHEETS-SHEET 1.

PATENTED JULY 7, 1908.

F. L G. JL HELM. PosT AND TILE Mo'LD.

APPLICATION FILED 00T.17, 19.05l

2 SHEETS-SHEET 2.

iai-(trifft.)

UNITED- STATES PATENT onnrcni.

FRANK HELM AND CHARLES I. HELM., OF TRAVERSE CITY, MICHIGAN, ASSIGNORS TO E. G. SIGGERS, OF WASHINGTON, DISTRICT OF COLUMBIA..

POST AND TILE MOLD.

Specification of Letters Patent.

Patented July 7, 1908.

T o all whom it' 'may concern:

Be it known that we, FRANK HELM and CHARLES J. HELM, citizens of the United States, residing at Traverse City, in the county of Grand Traverse and State'of Michigan, have invented a new and useful Post' and .Tile Mold, of which the following is a specification.

The invention relates to improvements in post and tile molds.

-The object of the presentinvention is to improve the construction of post and tile molds, and to provide a simple and comparaA tively inexpensive one, which will ne strong and durable, and which will enable a concrete fence post to be constructed in the ground at the place where i't is to be used, either with or without an anchoring flange at the lower end.

A further object el the invention is to rovide a mold of this character, adapten to provide a tapering base for fence posts, and capable of enabling the taper of the base to be readily varied.

Another object of the invention is to ro vide a mold adapted for molding ho low tiles of concrete, and having inner and outer spaced shells or casings adapted to be contracted and expanded respectively to facili tate the removal of the mold from a tile.

With these and other objects in view, the invention consists in the construction and novel combination und arrangement of parts, hereinafterfully described, illustrated 1n the accompanying drawing and pointed out in the claims, hereto appended; it being understood that various changes in the form, proportion, size, -aml minor details of construction, within the scope oi' the claims, may be resorted to without departing from the spirit or sacrilicing any of the advantages of the invention.

In the drawing:-l*`igure 1 is a vertical sectional view ol' a fence post mold, constructed in accordance with this invention, the post being shown in elevation. Fig. 2 is a perspective view of the mold, the hopper being removed. F ig. 3 is a horizontal sectional view of the mold. Fig. 4 is a detail perspective view of the removable key. Fig. 5 is a side elevation of a tile mold constructed in accordance with this invention. Fig. 6 is a vertical sectional view of the same, illustratingcthe reversely arranged inner key for contracting the inner shell or casing.

Fig. 7 is a horizontal sectional view on the line 7-7 `of Fi 6. Fig. S is a detail perspective view o the pallet.

i Like numerals of reference designate corresponding parts in all the figures oi the drawings.

1 designates a substantially cylindrical shell or casing, constructed of resilient sheet metal, or other suitable material, and having spaced side edges, which are bent backward exteriorly of the mold to form anges 2 for interlocking with inturned flanges 3 of a key 4, which constitutes a section of the mold and thereby closes or covers the space between the side edges of the shell or casing, and completes the same. The shell o1l casing is expansible, and is held in the confined position illustrated in Figs. 2 and 3 of the drawings by means of the key 4, which is tapered upwardly from the top to the bot tom of the mold to taper or flare the shell or casing 1 for providing a tapering fence post base 5, as illustrated in Fi 1 of the drawings. By employing keys o different widths, and of various tapers, a fence post base having the desired taper may be readily molded.

The 'u per edge Pof the shell or casing is preferah y rolled and rovided with a. stiening wire arranged wit `n the roll or bead, as clearly shown in Figs. 1 and 2 of the drawings. The shell or casing I is provided at its upper portion with opposite hooks 6 for faci itating the ready removal of the shell or casing from'a post-hole after the post has been molded therein, as hereinafter ex' plained. The key 4 is provided at its upper portion with a similar hook 7 for facilitating the removal of the same, andthe said key is adapted to be readily drawn upward ont of engagement with the flanges 2, with which the key is slidably interlocked. The key is ada ted to be drawn upward freely, as it' grat ually increases in width from its upper to its lower end, and as the key is drawn upward, the shell or casing 1 extends and frees itself from the mold-hase 5.

The mold while adapted ier making fence post either in or out of 'the ground,is designed particulaly for molding a fence est in the hole in whiehthe post is to be use( as it avoids loss by breakage o r any other damage through shippinlr and otherwise handling fence posts. In melgding a fence ost, a suitable hole is dug, and the mold is aeed there in. The mold may be placed t irectly upon pas indicated in Fig. 1 of the drawings.

the ground at the bottom of the hole or it may be suitably supported above the bottom of the hole, which may be enlarged thereat so that when the concrete or other plastic material is poured into the mold, it

Will extend beyond the same at the bottom thereof to form a bottom anchoring flange8, The concrete may' be simply poured into the mold, and allowed to set belore removing the mold from the base, or the concrete may be tamped, which will enable the mold to be removed shortly after the base is molded. When making the post in the ground after the material is pou ed or tamped in the mold, the ground is replaced around the outside of the mold and tamped tightly, and the mold removed at once. The mold is provided )Vith a hopper' 9 consisting of a funnel shaped upper portion and a depending' substantially cylindrical lower portion or flange 10, which fits Within the top of the mold. The Aupper portion of thefence ost preferably consists of an angle iron ar 11, T- shaped in cross section, and having its lower portion embedded in the concrete base 5, as clearly indicated in dotted lines in Fig. 1 of the drawings. Any suitable means may be provided for supporting fence Wires, boards or other fencing material to the fence posts. Thel mold may be also provided for making posts or bases for underpinning or for any other purpose. y

ln ldigs. 5 to 8 inclusive is illustrated a tile mold composed of inner and outer cylindrical shells 12 land 13, adapted to be arranged on a pallet 14, having an annular projecting flange or portion 15, s aced from thel outer edge of the pallet, an adapted to' be interposed between the inner and outer shells or casings of the mold for spacing the same the proper .distance apart to rovide a tile of uniform thickness. The pa let is circular and projects beyond the annular flange or portion 15 tov provide a seat for the, outer shell or casing.

The inner shell creasing is provided with spaced inturned side edges forming flanges l 16, located within the-space inclosed by the inner shell or casing, and slidably interlocked with hook-shaped flanges 17 of a key 18,` which tapers from top to bottom, and which is bent at 19, adjacent to the hook-shaped flanges to arrange its intermediate ortion in the saine circular plane as the a jacent portion of the inner shell or casing. rl`his construction also provides abutting shoulders for retaining the flanges of the inner shell or casing in their interlocked relation with the flanges of the key. When the key, Awhich constitutes a section of the inner shell or casing and which is pro .vided 'with a suitable hook 2() is drawn upward, it contracts the inner shell or casing, and witliraws the same from the inner face of the tile 21, thereby facilitating the removal of the inner shell or casing from the tile.

rl'he outer shell or casing is provided with' spaced side edges having eXteriorly arranged l'langes 22, which are slidably interlocked with inturned flanges 23 of a key 24, which also constitutes a section of the outer shell and tapers from its lower end to its upper end, whereby when the key is drawn upward, the exterior shell or casing will be permitted to expand and free itself from the tile. The key 24, which is preferably provided with a suitable hook 25 to facilitate its upward movement, may be bent at opposite sides similar to the inner key 18 to arrange its intermediate portion in the saine circular plane as the adjacent portion of the cuter shell or casing. y

The shells or casings and the keys constii tute mold members, and the interlocked edges, which are inclined longitudinally, form guides.l By' this .construction, the peripheral area of the inner and outer shells or formers of the mold may be contracte and expanded.

The pallet 14 is the only one necessary for molding the tiles, and after -a tile has been molded, the mold may be inverted to permit the ready removal of the pallet 14.

The mold is provided with a hopper composed ol inner and outer oppositely inclined members 25 and 27, having depending annular flanges or portions 28 and 29, which fit within the s ace between the inner and outer cylindrica shells or casings. The walls or members 26 and 27 of the hoppers are preferably connected at the top by suitable rods 2Q and extending across the space between the members 26 and 27 and ar ranged at suitable intervals. The rods 29EL by being located at the upper edges of the inner and outer Walls of the funnel, are adapted to serve as handles for placing the funnel in and removing the same from the mold. y The concrete or other lastic material may be tam ed in the mo d, or it may be sim ly poure into the same, andwhen tampe the mold may be removed from the tile after the operation of molding has been completed, but owing to the very low cost of the mold, a number may be employed and the material may be left in the molds until it sets.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

l. A in'old comprising an expansible shell or casing, formed in a single piece and having spaced side edges arranged at one side of the mold, and a single upwardly tapered key .lor the mold constituting a section of the shell or casing and slidably interlocked with the spaced side edges oi the same, and bridging the space between said side edges, said key holding the side edges of the shell or casing against outward movement, and movable verticall to expand the shell or casing and free the atter from a post or tile.

2. A mold comprisinga shell orcasing having spaced side edges, and a key tapering from the bottom to the top of the shell or casing, and constituting a section of and comp eting the same, both the inside and outside faces of the key being substantially continuous with the inside. and outside faces pansible and contractileshells or casings` of the shell or casing, the said key being slidablyinterlocked With the edges of the said shell or casing, and movable vertically to contract the same.

3. A mold comprising outer and inner exhaviii spaced side edges, and reversely taperedrkeys connecting the side edges and constituting sections of the shells or casings and extended from the top to the'bottom of the same, said keys being vertically movable to expand the outer shell or casing and contract the inner one.

4. A mold comprising inner and outer resilient shells or casings having spaced side edges, and reversely tapered keys extending from the top to the bottom of the mold and constituting sections of the said shells or casings to com lete the same, said keys bein slidably inter ocked with the said space edges and being movable vertically to contract one of the shells or casings and to expand the other. y

5. A mold comprising a pallet having an upwardly projecting portion, inner and outer shells or casings having their lower ends 'fitted against the inner and outer edges of the projecting portion of the l allet, said shells or casings having spaced side edges, a funnel having spaced portions fitting between the upper ends of the inner and outer shells or casings, and reversely tapered keys extending from the top to the bottom of the mold and slidably interlocked with the said spaced edges, and movable vertically to contract one of thc shells or casings and expand the other to disengage the saine from the )rejecting portion of the pallet and the 'lunneL A toi-.m for molding articles in concrete and plastic material composed of two rela tively expansible mold members, to Wit, a shell or casing in one piece, and a sin gie-piece key 5 the. outer surfaces of both of which con# stituting molding surfaces 'and connected at their edges by longitudinally inclined interlocking guides, whereby the longitudinal nniveincnts of one member will, through the slidably interocked with interlocking guides, positively draw in and force out the other member, and contract and expand the peri lieral area of the former,

LA post ami tile mold consisting of col lapsible parts, relatively-movable longitu dinally, the outer surfaces of which parts constitute molding surfaces, one ol the parts beingv connected with another part by com pleinentary longitudinally inclined interlocking guides, whereby the longitudinal movenient of one part will, through said interlocking guides, positively draiv in and force out another part, and-thus contract and expand the peripheral area of the mold.

8. Amold comprising a substantially cylindrical shell or casing constructed of resilient sheet metal having spaced side edges provided With flanges or guides which are longl tudinally inclined, and a key tapering from one end to the other and extending from thev top to the bottom of the shell or casing and constituting a section of and completing the said shell or casing, said key being slidably interlocked with the said flanges or guides and movable longitudinally to free the shell or casing from the article being molded.

9. A mold comprising a shell or casing formed in a single piece and having spaced side edges Which are provided With flanges or guides, and a key ta ering Afrom one end to the other, and exten( ing from the top to the bottom of the shell or casing, and constituting a section of and completing the same, said-key havin(T flanges or guides at its edges, the flanges or guides ofthe shell or casing, and movable vertically to free the shell or casing from the cylindrical shell or. casing having spaced side iedges, and a key tapering from one end to the other and extending from the top to the bottom of the shell or easing, said key being slidably interlocked with the edges of the said shell or casing, and constituting a section of and completing one side of the saine,

said key having its inside and outside faces vcurved and substantially continuous with the contiguous curved faces of the shell or casing.

In testimony, that we claim the 'foregoing as ournwn, We have hereto al'lixed our signatures in the presence of two Witnesses.A

FRANK HELM,

)HARLES J. HELM.

Witnesses:

CHAsE. HALE, EVERETT WHITNEY. 

